NOTE: pls clean your original car side mirror with alcohol or some other cleaning products, press down a little hard when attach the blind spot mirror to side mirror, this is VERY important to prevent fall off from side mirror. | ADVANTAGE: maximize your view with wide angle in car, eliminate blind spots, flexible convex shape of blind spot mirror helps you to forecast the next surroundings to avoid any accident or collision during passing, changing lanes or reversing, increase driving safety. | FEATURE: size - 2.76" (70 mm) x 1.6" (41 mm) rectangular, 2 piece packaged, HD glass curved frameless ultrathin slim design, IP65 waterproof, rust resistant and the glass will not haze. Each blind spot mirror comes with pivot base and super strong 3M adhesive for pressure-sensitive tape installation that keeps them firmly in place. | APPLICATION: suitable for interior or exterior use, can be used as blind spot mirror on car side mirror, as a car interior rear view mirror to check the safety of backseat child or used as car back seat mirror to observe the surroundings before getting off. | EASY TO INSTALL: install and test within seconds, spend less and makes lifetime safer. All universal vehicles car fit accessory, MUST have for every truck, car, SUV, RVs and vans. PLS NOTE: this item do not fit for motorcycle.